A geomechanical process leading to sinkhole appearance in post-mining areas has been analysed. Changes of rock mass physical properties can be expected in the vicinity of inhomogeneities moving up towards the surface. Some geophysical measurements can be used for locating the risk site. The examples presented prove the effectiveness of the geophysical methods used to identify a sinkhole formation process in geological conditions of post-mining areas in Poland. Finally, some basic remarks on limitations of the geophysical methods have been underlined as well as the direction for further research work. <br> <br>


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